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1520352313230 = 23572117027931
BaseRepresentation
bin10110000111111100000…
…011110011111110001110
312101100021222002202212110
4112013330003303332032
5144402140143010410
63122235030244450
7214561514302512
oct26077403637616
95340258082773
101520352313230
11536861277573
122067a2ab6726
13b04a3aa72ba
145382a662142
1529834009720
hex161fc0f3f8e

1520352313230 has 32 divisors (see below), whose sum is σ = 3649352082048. Its totient is φ = 405371002400.

The previous prime is 1520352313223. The next prime is 1520352313243. The reversal of 1520352313230 is 323132530251.

It is a happy number.

It is a super-2 number, since 2×15203523132302 (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3297636 + ... + 3730295.

It is an arithmetic number, because the mean of its divisors is an integer number (114042252564).

Almost surely, 21520352313230 is an apocalyptic number.

1520352313230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1520352313230 is an abundant number, since it is smaller than the sum of its proper divisors (2128999768818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1520352313230 is a wasteful number, since it uses less digits than its factorization.

1520352313230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7035152.

The product of its (nonzero) digits is 16200, while the sum is 30.

Adding to 1520352313230 its reverse (323132530251), we get a palindrome (1843484843481).

The spelling of 1520352313230 in words is "one trillion, five hundred twenty billion, three hundred fifty-two million, three hundred thirteen thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 7211 14422 21633 36055 43266 72110 108165 216330 7027931 14055862 21083793 35139655 42167586 70279310 105418965 210837930 50678410441 101356820882 152035231323 253392052205 304070462646 506784104410 760176156615 1520352313230